| Blairhall Comrie Castle Residents Ltd | Dunfermline | 2014 |
| Blairstar Properties Limited | Gloucester | 2024 |
| Blaisdon (Abbeydale) Management Company Limited | Gloucester | 1988 |
| Blaise Dell Flat Management Co. Limited | Bristol | 1973 |
| Blaise Park Resident Management Company Limited | Northampton | 2018 |
| Blaize & Carr Holdings Ltd | London | 2019 |
| Blake Court Management Company Limited | Essex | 1993 |
| Blake Dene Court (Southbourne) Limited | Bournemouth | 1976 |
| Blake House RTM Company Ltd | Swindon | 2020 |
| Blake Lodge Residents Association Limited | Redditch | 1985 |
| Blake Mews Limited | London | 2013 |
| Blake Mews Management Company Limited | York | 2007 |
| Blake Property Management Limited | Doncaster | 2004 |
| Blake Street Management Company (Bridgwater) Ltd | Langport | 2021 |
| Blake's Property Holdings Limited | High Peak | 2022 |
| Blakehurst Barns Management Limited | Chichester | 2020 |
| Blakeland Properties Limited | Sutton Coldfield | 2025 |
| Blakelands Land Management Limited | Croydon | 1981 |
| Blakeleigh Court Management Company Limited | London | 2003 |
| Blakeley Walk Management Company Limited | Shrewsbury | 2008 |
| Blakemore Estates Limited | London | 1997 |
| Blakemore Manor (Hertford) Management Company Ltd | Hemel Hempstead | 2020 |
| Blakenall Heath Management Company Limited | Dudley | 2006 |
| Blakeney Flats Limited | Birmingham | 2016 |
| Blakeney Green Management Company Limited | Derby | 2024 |
| Blakeney Hall Residents Association Limited | Beckenham | 1990 |
| Blakeney High Street Flats Limited | St Neots | 1978 |
| Blakeney House Residents Association Limited(The) | Middlesex | 1980 |
| Blakeney Lodge Freeholders Limited | London | 1997 |
| Blakeney Place Limited | York | 1982 |
| Blakeney Residents Association Limited | Norfolk | 1985 |
| Blakenhall Gardens Commercial Management Company Limited | Coventry | 2012 |
| Blakenhall Gardens Residents Management Company Limited | New Milton | 2011 |
| Blakenham Park (Ipswich) Management Company Limited | Bury St. Edmunds | 2005 |
| Blaker Road Flat Management Company Limited | Sawbridgeworth | 2002 |
| Blakers Yard Management Company Limited | Sutton | 2026 |
| Blakes Close RTM Company Limited | Lowestoft | 2019 |
| Blakes Court (Management Company) Limited | Rickmansworth | 1999 |
| Blakes Oak Management Company Limited | Oxford | 1986 |
| Blakes Quay Management Company Limited | Reading | 2002 |
| Blakes View (Pook Lane) Residents Management Company Limited | Bognor Regis | 2021 |
| Blakes View Management Company Limited | Bognor Regis | 1994 |
| Blakes Wood Management Company Limited | Knutsford | 2001 |
| Blakes Yard Management Company Limited | Milford On Sea | 2013 |
| Blakeside Management Limited | Portsmouth | 1998 |
| Blakesley Court Freehold Limited | Ealing Common | 2021 |
| Blakesley Management Limited | Ealing | 1987 |
| Blakesley Mews (1-23) RTM Company Limited | Birmingham | 2022 |
| Blakesley Mews (24-50) RTM Company Limited | Birmingham | 2022 |
| Blakespool Park Management Company Limited | Bristol | 1988 |
| Blakeview Limited | Market Rasen Lincoln | 1992 |
| Blanc Holdings Ltd | Coventry | 2026 |
| Blanchards (IW) Management Company Ltd | Newport | 2021 |
| Blandford Brewery Estate Management Company Limited | Newcastle Upon Tyne | 2022 |
| Blandford Court Tenants Association Limited | London | 1992 |
| Blandford House Management Company Limited | Blandford Forum | 1979 |
| Blandford Property Management Services Ltd | Stafford | 2026 |
| Blandford Rise Management Company Ltd | Poole | 2019 |
| Blandford Road Residents Association Limited | Poole | 1994 |
| Blandmere Limited | Stockport | 1973 |
| Blandon Parking Company Ltd | Cardiff | 2022 |
| Blandon Way Management Limited | Cardiff | 1979 |
| Blands Farm Close Management Company Limited | Diss | 2006 |
| Blanford House Residents Limited | Bromley | 1988 |
| Blanford Mews (Reigate) Management Company Limited | Bury St Edmunds | 2004 |
| Blankstones Farm Management Company Limited | Witney | 2011 |
| Blanmerle Road Management Co Ltd | London | 2026 |
| Blantyre Limited | Birmingham | 1993 |
| Blaris (Fields and Lane) Management Company Limited | Belfast | 2017 |
| Blaris Meadows Estate Management Company Limited | Belfast | 2015 |
| Blashfields Place Management Company Limited | Cambridge | 2004 |
| Blatchford Court Management Company Limited | Okehampton | 2019 |
| Blatchford Court Residents Association Limited | Walton On Thames | 1979 |
| Blatchington Hill Flats (Seaford) Limited | Seaford | 2020 |
| Blatchinworth Property Management Ltd | Littleborough | 2025 |
| Blawith Road NO 1 Limited | Ashford | 2006 |
| Blayds House Easingwold Limited | York | 1997 |
| Blayds Mews Properties Limited | Leeds | 2019 |
| Blazebell Property Management Limited | London | 1994 |
| Blazer Court Limited | Ruislip | 1990 |
| Bleak House ST Albans Management Company Ltd | Hove | 2004 |
| Blean Common Management Company Limited | West Malling | 2025 |
| Bleandale Management Company Limited | Colchester | 1980 |
| Bleasby (2000) Limited | Cheltenham | 1999 |
| Bleasby House (Managers) Limited | Cheltenham | 1973 |
| Bleasdale Court Association Limited | Thornton-Cleveleys | 1969 |
| Blease Road (Threlkeld) Limited | Keswick | 2022 |
| Bleckgrove Limited | Colchester | 1982 |
| Bleemys Exclusive Limited | London | 2020 |
| Blegborough Freehold Ltd | London | 2021 |
| Blencathara Court (Management) Limited | Weston-Super-Mare | 1982 |
| Blencathra Court Limited | Keswick | 2003 |
| Blencowe Street Management Company Ltd | Carlisle | 2017 |
| Blendcrown Limited | Watford | 2000 |
| Blended Holdings Limited | London | 2020 |
| Blendworth Hills Management Limited | Nottingham | 2023 |
| Blenheim (Bovey) Management Company Limited | Paignton | 2019 |
| Blenheim (Branksome Park) Management Limited | 328A Wimbourne Road | 1974 |
| Blenheim Apartments Limited | 150 Holywood Road | 1986 |
| Blenheim Court (Apartments 1-6) Limited | Upham | 2021 |